Small-scale propellers, especially those used on conventional multicopter configurations or in the context of urban air mobility, may experience high inflow angles. In order to improve their aerodynamic efficiency, a better understanding of the flow-fields that occur under non-axial inflow conditions is required. Therefore, both isolated and ducted small-scale fixed-pitch propellers are analyzed at a range of inflow angles from zero to 180 degrees, to investigate their steady and temporal resolv... »
Drone, Duct, Non-axial inflow, Propeller, UAV, Urban air mobility
The authors would like to thank the Bavarian Research Foundation ( Bayerische Forschungsstiftung ) for funding of the HyProp research project under the grant number AZ-1277-17 . Further, we gratefully acknowledge the successful collaboration and support by the project partner Rolls-Royce Deutschland Ltd & Co . We give special thanks to ANSYS for providing the flow simulation software. The authors thank the company APC Propellers for providing the geometrical data of the analyzed propeller.